Brzozowski, J. A.; Knast, R. The dot-depth hierarchy of star-free languages is infinite. (English) Zbl 0368.68074 J. Comput. Syst. Sci. 16, 37-55 (1978). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 65 Documents MSC: 68Q45 Formal languages and automata PDF BibTeX XML Cite \textit{J. A. Brzozowski} and \textit{R. Knast}, J. Comput. Syst. Sci. 16, 37--55 (1978; Zbl 0368.68074) Full Text: DOI OpenURL References: [1] Brzozowsm, J.A., Hierarchies of aperiodic languages, Rev. française d’automatique informat. recherche operationnelle Série rouge (informatique théorique), 10, 35-49, (1976) [2] Brzozowski, J.A.; Culík, K.; Gabrielian, A., Classification of noncounting events, J. comput. system sci., 5, 41-53, (1971) · Zbl 0241.94050 [3] Cohen, R.S.; Brzozowski, J.A., Dot-depth of star-free events, J. comput. system sci., 5, 1-16, (1971) · Zbl 0217.29602 [4] McNaughton, R.; Papert, S., Counter-free automata, (1971), M.I.T. Press Cambridge, Mass · Zbl 0232.94024 [5] Schutzenberger, M.P., On finite monoids having only trivial subgroups, Inform. contr., 8, 190-194, (1965) · Zbl 0131.02001 [6] Simon, I., Piecewise testable events, () · Zbl 0316.68034 This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. It attempts to reflect the references listed in the original paper as accurately as possible without claiming the completeness or perfect precision of the matching.